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  <title>画一个矩形</title>
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  <div id="layout-content"><div id="function.imagerectangle" class="refentry">
   <div class="refnamediv">
    <h1 class="refname">imagerectangle</h1>
    <p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">imagerectangle</span> &mdash; <span class="dc-title">画一个矩形</span></p>

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   <div class="refsect1 unknown-seealsp" id="refsect1-function.imagerectangle-unknown-seealsp">
    <h3 class="title">说明</h3>
    <div class="methodsynopsis dc-description">
     <span class="methodname"><strong>imagerectangle</strong></span>
      ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$image</code></span>
     , <span class="methodparam"><span class="type">int</span> <code class="parameter">$x1</code></span>
     , <span class="methodparam"><span class="type">int</span> <code class="parameter">$y1</code></span>
     , <span class="methodparam"><span class="type">int</span> <code class="parameter">$x2</code></span>
     , <span class="methodparam"><span class="type">int</span> <code class="parameter">$y2</code></span>
     , <span class="methodparam"><span class="type">int</span> <code class="parameter">$col</code></span>
     ) : <span class="type">bool</span></div>

    <p class="para rdfs-comment">
     <span class="function"><strong>imagerectangle()</strong></span> 用
     <code class="parameter">col</code> 颜色在
     <code class="parameter">image</code> 图像中画一个矩形，其左上角坐标为
     x1, y1，右下角坐标为 x2, y2。图像的左上角坐标为
     0, 0。
    </p>
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